What this reactor is and what it does
The Siemens SIDAC 4EU2732-0ME08-0AA0 is a 3-phase filter reactor rated for 72 A continuous (80 A max) at 460 V AC, 60 Hz. It delivers 50 kVAR of reactive power and carries a 5.67% relative throttling factor — meaning it introduces enough impedance to smooth current harmonics and limit inrush on the line side of a VFD or power converter. The 0.68 mH inductance and 252 Hz resonant frequency are tuned for typical 6-pulse drive front ends.
Where it lands in a panel
IP00 means no enclosure — this is a bare choke meant for a cabinet. At 0.187 m deep, 0.27 m wide, and 0.248 m tall, it takes up a solid chunk of panel real estate. Connections are via flat connector or screw-type terminals, so expect busbar or cable lugs, not a plug-in block. Thermal class H (IEC 60085) means the winding insulation holds up to 180 °C hot-spot, which matters when it's stacked near drives or braking resistors.